(19)

(11)

EP 1 729 906 A1

(12)

(43) Date of publication: 13.12.2006 Bulletin 2006/50 (21) Application number: 05725716.4 (22) Date of filing: 15.03.2005

(51) International Patent Classification (IPC):  B23B 31/107(2006.01) (86) International application number: PCT/US2005/008720 (87) International publication number: WO 2005/089989 (29.09.2005 Gazette 2005/39)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (30) Priority: 15.03.2004 US 553581 P (71) Applicant: Wienhold, James L. Minneapolis MN 55405 (US)	(72) Inventor: Wienhold, James L. Minneapolis MN 55405 (US) (74) Representative: Larcher, Dominique  16B Rue de Jouanet 35703 Rennes Cédex 7 35703 Rennes Cédex 7 (FR)